html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}

/* 以下為新增 */

.vertical-space {
    height: 20px; /* 你想要的高度 */
}

.readonly-select {
    pointer-events: none; /* 不能點擊 */
    background-color: #e9ecef; /* 和 disabled 顏色一致 */
}